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Technical Innovation
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Patent No. |
Patent Name |
Patent type |
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ZL 01 2 47023.6 |
downhole transducer unit |
Utility New type |
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ZL 01 2 47024.4 |
a type of walllocked device |
Utility New type |
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ZL 03 1 34201.9 |
a type of source equipment using for deep wells with casing. |
Invention Patent |
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CN1904643 |
Crosswell seismic methed by exciting and
receiving reflecting wave |
Invention Patent
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